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Raghu Angadi commented on HADOOP-2916:
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I am trying to figure out what exactly need to be done in _this_ jira. My understanding :
- No changes in files should be required. They should only be moved.
-- So dfs package is still called dfs. It will be under src/hdfs/o/a/h/dfs
- Anything under src/java that does not go into src/hdfs and src/mapred goes into src/core
- There is no new jar. still just hadoop-version-core.jar.
> Refactor src structure, but leave package structure along
> ---------------------------------------------------------
>
> Key: HADOOP-2916
> URL: https://issues.apache.org/jira/browse/HADOOP-2916
> Project: Hadoop Core
> Issue Type: Sub-task
> Components: dfs
> Reporter: Sanjay Radia
> Assignee: Raghu Angadi
> Fix For: 0.17.0
>
>
> This Jira proposes that the src structure be split as below.
> The package structure remains the same for this Jira. (Package renaming is part of other
JIras such as HADOOP-2885).
> The idea is that the src will be split BEFORE the package restructuring
> The new proposed src structure is
> src/test - unchanged
> src/java - will no longer exit , its content will be move to one of core, hdfs, or mapred
> src/core - this will contain the core classes that hadoop applications need to link against.
> It will contain client side libraries of all fs file systems: local, hdfs, kfs, etc
> jar name hadoop_core.jar
> src/core/org.apache.hadoop.{conf, fs, filechache, io, ipc, log, metrics, net, record,
security, tools, util)
> src/core/org.apache.hadoop.dfs - this will contain only the client side parts of dfs.
> HADOOP-2885 will rename package dfs to package fs.hdfs
> src/hdfs/org.apache.hadoop.dfs - this will contain only the server side of hdfs.
> HADOOP-2885 will rename package dfs to package fs.hdfs later; a compatible dfs.DistributedFileSystem
will be left for compatibility/
> jar name hadoop_hdfs.jar - this jar can be used to launce NNs and DNs etc.
> src/mapred/org.apache.hadoop.mapred.*
> Initially one jar: hadoop_mapred.jar
> Later this may be split into client-side and server-side jars.
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